Crystal unit Product Number (please contact us) MC-306 : Q1xMC3062xxxx00 MC-405 : Q1xMC4052xxxx00 kHz RANGE CRYSTAL UNIT MC-406 : Q1xMC4062xxxx00 MC - 306 MC - 405 / MC - 406 Frequency range : 32.768 kHz (20 kHz to 120 kHz) Thickness : 8.0 3.8 2.54 mm MC-306 Actual size 10.41 4.06 3.6 mm MC-405 / 406 Overtone order : Fundamental MC-306 MC-405 / 406 Applications : Clock and Microcomputer Specifications (characteristics) Item Symbol Specifications Conditions / Remarks Nominal frequency range f nom 32.768 kHz 20 kHz to 120 kHz Please contact us about available frequencies. Storage temperature T stg -55 C to +125 C Storage as single product. Operating temperature T use -40 C to +85 C Level of drive DL 1.0 W Max. -6 -6 -6 -6 Frequency tolerance (standard) f tol 20 10 , 50 10 50 10 , 100 10 +25 C, DL=0.1 W Turnover temperature Ti +25 C 5 C -6 2 Parabolic coefficient B -0.04 10 / CMax. Load capacitance CL 6 pF to (standard :12.5 pF) Please specify Motional resistance (ESR) R1 50 k Max. As per table below 1.8 fF Typ. MC-306 Motional capacitance C1 4.0 fF to 0.6 fF 2.0 fF Typ. MC-405 / 406 0.9 pF Typ. MC-306 Shunt capacitance C0 2.0 pF to 0.6 pF 0.85 pF Typ. MC-405 / 406 -6 -6 Frequency aging f age 3 10 / year Max. 5 10 / year Max. +25 C, First year Motional resistance (ESR) Frequency 20 kHz f nom< 31.2 kHz 31.2 kHz f nom< 40 kHz 40 kHz f nom< 90 kHz 90 kHz f nom120 kHz Motional resistance 55 k Max. 35 k Max. 20 k Max. 12 k Max. Product name MC-306 32.768000kHz 12.5 +20.0-20.0 (Standard form) -6 Model Frequency Load capacitance(pF) Frequency tolerance( 10 , +25 C) External dimensions (Unit:mm) . Internal connection in MC-405 MC-405 / 406 MC-306 (TOP VIEW) 8.0 Max. 4 3 4 3 Internal connection 1 2 3 4 32.768 k (TOP VIEW) 32.768 k Internal connection in MC-406 4 3 E 6571A (TOP VIEW) E 571 1 2 3 4 9.60 1 2 1 2 1 2 10.41 Max. 0.5 0.51 0.51 1.9 5.5 (0.9) (0.9) 2.54 2.54 2.29 Do not connect 2 and 3 to external device. Do not connect 2 and 3 of MC-406 to external device. The metal case inside of the molding compound may be exposed on the top or bottom of this product. This purely cosmetic and does not have any effect on quality, reliability or electrical specs. The first digit of No. means: 5 MC-405 6 MC-406 Footprint (Recommended) (Unit:mm) MC-306 MC-405 MC-406 4.1 3.9 4.1 4.1 3.9 4.1 1.3 4.2 1.3 2.38 3.2 1.9 1.9 1.3 2.54 Max. 3.8 Max. 4.1 0.2 Min. 3.15 4.06 Max. 3.6 Max. 1.52 1.52 0.8 PROMOTION OF ENVIRONMENTAL MANAGEMENT SYSTEM CONFORMING TO INTERNATIONAL STANDARDS At Seiko Epson, all environmental initiatives operate under the Plan-Do-Check-Action (PDCA) cycle designed to achieve continuous ISO 14000 is an international standard for environmental improvements. The environmental management system (EMS) management that was established by the International operates under the ISO 14001 environmental management standard. Standards Organization in 1996 against the background of All of our major manufacturing and non-manufacturing sites, in growing concern regarding global warming, destruction of the ozone layer, and global deforestation. Japan and overseas, completed the acquisition of ISO 14001 certification. WORKING FOR HIGH QUALITY In order provide high quality and reliable products and services than meet customer needs, ISO/TS16949 is the international standard that added the Seiko Epson made early efforts towards obtaining ISO9000 series sector-specific supplemental requirements for automotive certification and has acquired ISO9001 for all business industry based on ISO9001. establishments in Japan and abroad. We have also acquired ISO/TS 16949 certification that is requested strongly by major automotive manufacturers as standard. Explanation of the mark that are using it for the catalog Pb free. Complies with EU RoHS directive. *About the products without the Pb-free mark. Contains Pb in products exempted by EU RoHS directive. (Contains Pb in sealing glass, high melting temperature type solder or other.) Designed for automotive applications such as Car Multimedia, Body Electronics, Remote Keyless Entry etc. Designed for automotive applications related to driving safety (Engine Control Unit, Air Bag, ESC etc ). Notice This material is subject to change without notice. Any part of this material may not be reproduced or duplicated in any form or any means without the written permission of Seiko Epson. The information about applied circuitry, software, usage, etc. written in this material is intended for reference only. Seiko Epson does not assume any liability for the occurrence of infringing on any patent or copyright of a third party. This material does not authorize the licensing for any patent or intellectual copyrights. 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When using them in specific applications that require extremely high reliability, such as the applications stated below, you must obtain permission from Seiko Epson in advance. / Space equipment (artificial satellites, rockets, etc.) / Transportation vehicles and related (automobiles, aircraft, trains, vessels, etc.) / Medical instruments to sustain life / Submarine transmitters / Power stations and related / Fire work equipment and security equipment / traffic control equipment / and others requiring equivalent reliability. All brands or product names mentioned herein are trademarks and/or registered trademarks of their respective. Seiko Epson Corporation